Bookshelf decorations: your bookshelf will no longer be monotonous, but will become much more interesting. Smart sensor and warm LED light: it not only makes your bookshelf more beautiful, but also invites you in every time you come closer. When the sensor is within about 50cm, the LED will automatically light up and will turn off after 1 to 2 minutes. Product Information -Name: Spacetime Museum -Occasions: DIY Book Nook Kit / Bookshelf Decor / Bookshelf Insert Diorama -Weight: 1.5kg -Main Material: Wood -Recommended Age: 15+ -Difficulty Level: ★★★★★★ -Assembly Time: 4.5-6.5 Hours -Finished Size: 26.3x9.8x19cm -Glue/Batteries: NOT Included (Due to air transportation restrictions. White glue/liquid glue recommended; 3 AA batteries required.) WHY DIY BOOK NOOK KIT? - No additional tools required. -Creative design inspires imagination and creativity -Craft experience stimulates learning, concentration and patience -Beautiful miniature collection and decoration -Perfect and unique as a gift